参考如下代码,用windows api获取输入闲置时间 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Runtime.InteropServices;namespace WindowsApplication28 { public partial class Form1 : Form { [StructLayout(LayoutKind.Sequential)] public struct LASTINPUTINFO { [MarshalAs(UnmanagedType.U4)] public int cbSize; [MarshalAs(UnmanagedType.U4)] public uint dwTime; } [DllImport("user32.dll")] public static extern bool GetLastInputInfo(ref LASTINPUTINFO plii); public long getIdleTick() { LASTINPUTINFO vLastInputInfo = new LASTINPUTINFO(); vLastInputInfo.cbSize = Marshal.SizeOf(vLastInputInfo); if (!GetLastInputInfo(ref vLastInputInfo)) return 0; return Environment.TickCount - (long)vLastInputInfo.dwTime; } public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { this.timer1.Interval = 2000; this.timer1.Enabled = true; } private void timer1_Tick(object sender, EventArgs e) { long i = getIdleTick(); this.Text = string.Format("jinjazz说:您已经{0}ms没有动了",i); if (i > 10 * 1000) { this.WindowState = FormWindowState.Minimized; } else { this.WindowState = FormWindowState.Normal; } }
} }
另一思路,重载窗体的WndProc,判断其鼠标、键盘消息(我试过什么消息都不判断的话也行) protected override void WndProc(ref Message m) { base.WndProc(ref m); timeOut = 10; } private void timer1_Tick(object sender, EventArgs e) { if (--timeOut == 0) MessageBox.Show("Time is out!"); }
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;namespace WindowsApplication28
{
public partial class Form1 : Form
{
[StructLayout(LayoutKind.Sequential)]
public struct LASTINPUTINFO
{
[MarshalAs(UnmanagedType.U4)]
public int cbSize;
[MarshalAs(UnmanagedType.U4)]
public uint dwTime;
}
[DllImport("user32.dll")]
public static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
public long getIdleTick()
{
LASTINPUTINFO vLastInputInfo = new LASTINPUTINFO();
vLastInputInfo.cbSize = Marshal.SizeOf(vLastInputInfo);
if (!GetLastInputInfo(ref vLastInputInfo)) return 0;
return Environment.TickCount - (long)vLastInputInfo.dwTime;
} public Form1()
{
InitializeComponent();
} private void Form1_Load(object sender, EventArgs e)
{
this.timer1.Interval = 2000;
this.timer1.Enabled = true; }
private void timer1_Tick(object sender, EventArgs e)
{
long i = getIdleTick();
this.Text = string.Format("jinjazz说:您已经{0}ms没有动了",i);
if (i > 10 * 1000)
{
this.WindowState = FormWindowState.Minimized;
}
else
{
this.WindowState = FormWindowState.Normal;
}
}
}
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
timeOut = 10;
} private void timer1_Tick(object sender, EventArgs e)
{
if (--timeOut == 0)
MessageBox.Show("Time is out!");
}